Answer:
x-y=3-1=2
Step-by-step explanation:
![4x-8y=4](https://tex.z-dn.net/?f=4x-8y%3D4)
![4(\frac{20+4y}{8})-8y=4](https://tex.z-dn.net/?f=4%28%5Cfrac%7B20%2B4y%7D%7B8%7D%29-8y%3D4)
![\frac{80+16y}{8} -8y=4](https://tex.z-dn.net/?f=%5Cfrac%7B80%2B16y%7D%7B8%7D%20-8y%3D4)
![10+2y-8y=4](https://tex.z-dn.net/?f=10%2B2y-8y%3D4)
![10-6y=4](https://tex.z-dn.net/?f=10-6y%3D4)
![-6y=4-10](https://tex.z-dn.net/?f=-6y%3D4-10)
![-6y=-6](https://tex.z-dn.net/?f=-6y%3D-6)
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so x-y=3-1=2
Answer:
20 stacks of 5 pennies weight 0.33 pounds
Step-by-step explanation:
<u>First, we need to calculate the weight in kilograms of 20 stacks of 5 pennies:</u>
20 stacks= 0.0075*20
20 stacks= 0.15 kg
<u>Now, we can determine the weight in pounds:</u>
1kg = 2.2 pounds
0.15kg = ?
Weight in pounds= (0.15*2.2)/1
Weight in pounds= 0.33 pounds
20 stacks of 5 pennies weight 0.33 pounds
The correct point of the graph would be B. (2,-5)
Answer:
15
Step-by-step explanation:
12 x
--- = ---- --> 120 = 8x
8 10
120 = 8x
x = 15